122902979 has 16 divisors (see below), whose sum is σ = 133757568. Its totient is φ = 112484352.

The previous prime is 122902973. The next prime is 122903009. The reversal of 122902979 is 979209221.

It is a cyclic number.

It is not a de Polignac number, because 122902979 - 2¹² = 122898883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122902973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153809 + ... + 154605.

It is an arithmetic number, because the mean of its divisors is an integer number (8359848).

Almost surely, 2^122902979 is an apocalyptic number.

122902979 is a deficient number, since it is larger than the sum of its proper divisors (10854589).

122902979 is a wasteful number, since it uses less digits than its factorization.

122902979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 122902979 is about 11086.1615990387. The cubic root of 122902979 is about 497.1881890800.

The spelling of 122902979 in words is "one hundred twenty-two million, nine hundred two thousand, nine hundred seventy-nine".